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Durham

 Subject
Subject Source: Local sources

Found in 5 Collections and/or Records:

 Item

Letter from Le Duc Duhamel to the Board of Longitude, 1822-02-25

Reference Code: GBR/0180/RGO 14/38: 469-470
Scope and Contents From the Item:

Six letters and two papers on his method of ascertaining the exact loss or gain of two chronometers, with a related newspaper extract.

Dates: 1822-02-25
Conditions Governing Access: From the Management Group: Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
 Item

Letter from Monsieur Duhamel, 1820-08-14

Reference Code: GBR/0180/RGO 14/35: 373
Scope and Contents From the Item:

Two letters and a printed paper on finding the longitude by the moon's transit or distance from the meridian.

Dates: 1820-08-14
Conditions Governing Access: From the Management Group: Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
 Item

Letter from Monsieur Duhamel to Dr Thomas Young, 1820-05-03

Reference Code: GBR/0180/RGO 14/35: 371-372
Scope and Contents From the Item:

Two letters and a printed paper on finding the longitude by the moon's transit or distance from the meridian.

Dates: 1820-05-03
Conditions Governing Access: From the Management Group: Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
 Item

Monsieur Duhamel on an instrument for showing magnetic variation, 1820-05-15

Reference Code: GBR/0180/RGO 14/43: 509-511
Scope and Contents From the File:

Correspondence regarding the effect of magnetic variation on the mariner's compass, the use of magnetic variation to establish longitude and the cause of magnetic variation.

Dates: 1820-05-15
Conditions Governing Access: From the Management Group: Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
 Item

Printed paper outlining Duhamel's two new methods of ascertaining longitude, 1820-08-14

Reference Code: GBR/0180/RGO 14/35: 374-378
Scope and Contents

With an illustration.

Dates: 1820-08-14
Conditions Governing Access: From the Management Group: Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).